211342093 has 2 divisors, whose sum is σ = 211342094. Its totient is φ = 211342092.

The previous prime is 211342057. The next prime is 211342121. The reversal of 211342093 is 390243112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210047049 + 1295044 = 14493^2 + 1138^2 .

It is a cyclic number.

It is not a de Polignac number, because 211342093 - 2²¹ = 209244941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211340093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105671046 + 105671047.

It is an arithmetic number, because the mean of its divisors is an integer number (105671047).

Almost surely, 2^211342093 is an apocalyptic number.

It is an amenable number.

211342093 is a deficient number, since it is larger than the sum of its proper divisors (1).

211342093 is an equidigital number, since it uses as much as digits as its factorization.

211342093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 211342093 is about 14537.6096040580. The cubic root of 211342093 is about 595.6557448069.

The spelling of 211342093 in words is "two hundred eleven million, three hundred forty-two thousand, ninety-three".